FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for synthesis of 2,4-dichloro-2-dichlorophosphorylbutanoic acid chloroanhydride of the formula: 
. Method involves interaction of 2-chloro-4,5-dihydrofutylphosphonic acid dichloroanhydride with a chlorinating agent in inert organic solvent medium wherein sulfuryl chloride is used a chlorinating agent, and process is carried out at temperature 25°C. Invention provides increasing yield and simplifying process.
EFFECT: improved method of synthesis.
2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREPARING 2,4-DICHLORO-2-DICHLOROPHOSPHORYLBUTANOIC ACID CHLOROANHYDRIDE | 2005 |
|
RU2281287C1 |
| METHOD FOR PRODUCING 2,3-DICHLOROTETRAHYDROPHURIL-3-PHOSPHONIC ACID DICHLOROANHYDRIDE | 2022 |
|
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|
SU1162810A1 |
| METHOD FOR OBTAINING DICHLORO-SUBSTITUTED CYCLOPROPYLALKENYL(ALKYL) PHOSPHONIC OR THIOPHOSPHONIC CHLORIDES | 0 |
|
SU1659419A1 |
| METHOD FOR PREPARING 7,7-DICHLOROBICYCLO[4,1,0]HEPTYL-2-PHOSPHONIC ACID DICHLOROANHYDRIDE | 2004 |
|
RU2266910C1 |
| PROCESS FOR THE PREPARATION OF DICHLOROANHYDRIDES OF CHLORINE-CONTAINING 1,3-BUTADIENE-2-PHOSPHONIC ACIDS | 0 |
|
SU681066A1 |
| METHOD OF PRODUCING 2-ALKOXY-1-CHLOROETHENYLPHOSPHONIC ACID DIACYL CHLORIDES | 2018 |
|
RU2687562C1 |
| 0 |
|
SU547453A1 | |
| METHOD OF OBTAINING 2,4-DICHLOR-5,5-DIALKYL-2-OXO-1,2-OXA PHOSPHOL-3-ENS METHOD OF OBTAINING 2,4-DICHLOR-5,5-DIALKYL-2-OXO-1,2-OXA PHOSPHONOL-3-ENS | 0 |
|
SU1083607A1 |
| METHOD FOR PRODUCING 2,3-DIHYDROFURIL-4-PHOSPHIC ACID DICHLOROANHYDRIDE | 2022 |
|
RU2802467C1 |
